The Metro Council voted 30-2 to approve Nashville's first set of regulations aimed at the popular home-renting online service Airbnb.

The approved ordinance, sponsored by Councilwoman Burkley Allen, creates a new classification called "short-term rental properties."

The New regulations passed Tuesday include requiring operators of short-term rental properties to receive an annual permit with the Metro Codes department. The law also allows no more than four sleeping rooms at a time; regulates signage, noise, recreational vehicle parking and food service; limits stays of guests to 30 days and the number of guests to twice the number of sleeping rooms; and requires that principal owners be at least 21 years old.

Nashville led the nation in year-over-year growth in 2014 for summer bookings on Airbnb.